You'd think as long as Gunmakers have been reducing the kick & turning it into useful work that guns would be pulling away from us by now, instead of setting Back. All this still brings to mind the words of the late Julian S Hatcher when he said there are a lot of things which sound good if you say them "Real Fast" which just don't stand up to scrutiny. Last I heard Recoil was still determined by 3 factors.
Total weight of the ejecta, total velocity of same & total weight of the gun.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra